Answer:
Step-by-step explanation:
you will need a 10ft tall ladder
i hope that helped
One group of subjects was given an herbal supplement and another group was given a placebo. After one year, the number of illnesses each group had was compared.
answer choices
- Observational Study
- Experiment
The kind of study that was conducted on the subjects who were given suplement and Placebo is termed as Experimental Study .
What is Observation and Experiment ?The active gathering of data from a primary source is observation. Observation of living things makes use of the senses. In science, observation can also entail the perception of information and the recording of that information using tools.
Because of ethical considerations or practical limitations, an observational study infers information from a sample to the population even when the researcher has no control over the independent variable.
An experiment is a technique used to confirm or deny a hypothesis, as well as assess the possibility or effectiveness of something that has never been done before. Experiments show what happens when a certain component is modified, which sheds light on cause-and-effect relationships.
The kind of study that was conducted on the subjects who were given suplement and Placebo is termed as Experimental Study .
To learn more about Experimental Study refer to :
https://brainly.com/question/30363686
#SPJ4
Evaluate.(4!5!)/(2!7!)Simplify your answer as much as possible.
We have to solve this quotient with factorials:
\(\begin{gathered} \frac{4!5!}{2!7!} \\ (\frac{4!}{2!})(\frac{5!}{7!}) \\ (4*3)(\frac{1}{7*6}) \\ \frac{4*3}{7*6} \\ \frac{4}{7*2} \\ \frac{2}{7} \end{gathered}\)Answer: the simplified expression is 2/7.
T on R^3 maps v_1 (0,5,-4) to v_2 (-1, 1, -8). Does this
uniquely determine t(v_2)? If so, show it
the mapping of T on R^3, where T(v_1) = v_2, does not uniquely determine t(v_2) because there exist other vectors in R^3 that can map to v_2.
To determine if the mapping of T on R^3 uniquely determines t(v_2), we need to check if the given information is sufficient to uniquely determine the action of T on v_2.
Let's assume that T is a linear transformation from R^3 to R^3, and we have the following mappings:
T(v_1) = v_2
T(0, 5, -4) = (-1, 1, -8)
Now, to determine if t(v_2) is uniquely determined, we need to check if v_2 has a unique pre-image under T.
If we find another vector, let's say v_3, such that T(v_3) = v_2, then t(v_2) will not be uniquely determined.
Let's assume there is a vector v_3 = (a, b, c) such that T(v_3) = v_2. Then we have:
T(a, b, c) = (-1, 1, -8)
Now, we have a system of equations to solve:
T(a, b, c) = (-1, 1, -8)
(a', b', c') = (-1, 1, -8)
If we can find a solution to this system of equations, it means there are multiple vectors in R^3 that map to v_2, and t(v_2) is not uniquely determined.
Solving the system of equations, we obtain:
a = -1
b = 1
c = -8
Therefore, we have found a vector v_3 = (-1, 1, -8) that maps to v_2. This means that t(v_2) is not uniquely determined by the given information.
In conclusion, the mapping of T on R^3, where T(v_1) = v_2, does not uniquely determine t(v_2) because there exist other vectors in R^3 that can map to v_2.
To know more about Equation related question visit:
https://brainly.com/question/29657983
#SPJ11
If MP=6x-5,QR=3x+1, and RN=6, what is QN
Answer:
12
Step-by-step explanation:
12
Consider the sequence an = 9(0.4)n. which rule defines sn? sn = 6(0.4n) sn = 9(0.4n) sn = 6(1 – 0.4n) sn = 9(1 – 0.4n)
The rule that the defines the sum Sn is \(S_n =\frac{9 * (1 - r^n )}{0.6}\)
How to determine the expression for Sn?The formula of the sequence is given as:
an = 9(0.4)^n
The above means that:
The first term, a = 9Common ratio, r = 0.4The sum Sn is then represented as:
\(S_n =\frac{a(1 - r^n )}{1 - r}\)
So, we have:
\(S_n =\frac{9 * (1 - r^n )}{1 - 0.4}\)
Evaluate the difference and divide
\(S_n =\frac{9 * (1 - r^n )}{0.6}\)
Hence, the rule that the defines the sum Sn is \(S_n =\frac{9 * (1 - r^n )}{0.6}\)
Read more about geometric sequence at:
https://brainly.com/question/24643676
#SPJ4
3. On Bob's 10th birthday, his grandmother invested $1,500 in an account * 21
that was locked into a 12.5% interest rate, compounded quarterly. Will he
have enough for a $2500 down payment for his first car on his 16th
birthday?
Answer: not sure. but as long as he saves his money wisely and doesn't spend frivilously
Step-by-step explanation:
Jessica knows that she should spend no more than 1/3 of her income on her rent. She really wants to move into a condo downtown and has found a great place where the rent is $2,300 per month. Based on that, how much should Jessica earn each month to afford the rent on her cool new place? Show your work and make sure to create an equation.
Answer:
The solution is in the attached file
In a class of students, the following data table summarizes the gender of the students and whether they have an A in the class. What is the probability that a student chosen randomly from the class is a female?
Female Male
Has an A 5 2
Does not have an A 7 11
Answer:
Answer:
your answer should be 8 according to the bearing given
HELP. Linoleum floor tiles are each a 12-inch square. What is the minimum number of these tiles needed to tile the entire floor of a 6 ft by 4 ft rectangular kitchen and a 14 ft by 4 ft rectangular hallway?
CORRECT ANSWER GETS BRANLIEST, IF I SUBMIT MY TEST AND ITS INCORRECT U WILL BE REPORTED <3
Which equation has solutions at (3, 4)?
A. y=5x+2
B. y=2x-1
C. y=5x-2
D. y=2x+1
Answer:
none of them do
Step-by-step explanation:
i checked with a graphing calculator
If f(x) i increaing on an interval containing x1 and x2 where x1 i greater than x2, then it follow that
If f(x) is increasing on an interval containing x1 and x2 where x1 is greater than x2, then it follows that f(x1) is greater than f(x2).
This is because an increasing function means that the output values of the function, f(x), are increasing as the input values, x, increase. So, if x1 is greater than x2, then f(x1) will be greater than f(x2) since f(x) is increasing.
A function is said to be increasing if, for any two input values x1 and x2 in the domain of the function, if x1 is less than x2, then the output value of the function at x1 is less than the output value of the function at x2. In other words, if x1 is less than x2, then f(x1) < f(x2).
Learn more about Functions here:
https://brainly.com/question/17043948
#SPJ4
f(x, y) = (x2 + y2) log( x2 + y2 ), c(t) = (et, e−t)
The function f(x, y) = (x2 + y2) log( x2 + y2 ), c(t) = (et, e−t) is
( t^2+y^2)ln (t^2+y^2).
What is meant by logarithm ?The exponent or power that a base must be increased to in order to produce a particular number.
If bx = n, then the mathematical expression for x is x = logb n. For instance, 23 = 8, therefore 3 is the logarithm of 8 in base 2, or 3 = log2 8.
The most prevalent varieties of logarithms are common logarithms, which have a base of 10, binary logarithms, which have a base of 2, and natural logarithms, which have a base of e 2.71828.
We all know that 1 is equivalent to any number multiplied by the 0th power. Consequently, the above formula is valid since 10 rose to the power of 0.
For all log base values, this will be a requirement, and the result will be 1 if the base is increased to the power of 0. Consequently, log 1 has a value of 0.
F(x,y) = ( x^2+y^2)ln (x^2+y^2)°ct
Find F°c(t) given
F(x,y) = ( x^2+y^2)ln (x^2+y^2)°ct, ct = (et, e-t)
Now substitute x with t,
we get,
( t^2+y^2)ln (t^2+y^2).
To learn more about logarithm refer to:
https://brainly.com/question/30085872
#SPJ4
a competing company claims 90% of its printers lasty at least 36 months and 65% last at least 42 montnhs. what normal model parameters does this use?
The competing company's claims suggest that they are using a Normal model with a mean of 39 months and a standard deviation of 6 months. This means that 90% of their printers last at least 36 months and 65% last at least 42 months.
This is because the Normal model is symmetrical, meaning that the same percentage of printers last more than the mean as less than the mean. Therefore, the parameters of the Normal model are mean = 39 months and standard deviation = 6 months.
Normal model parameters describe the distribution of a random variable that follows a normal or Gaussian distribution. The parameters of a normal model are the mean, which is the average value of the random variable, and the standard deviation, which is a measure of the spread of the distribution.
Learn more about normal model parameters :
https://brainly.com/question/30064786
#SPJ4
15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:
Answer:B if two lines are cut by a traversal, then corresponding angles are congruent.
Step-by-step explanation: the corresponding angles theorem proves this.
9) The probability of rain on Monday is .6 and on Thursday is .3. Assuming these
are independent, what is the probability that it does NOT rain on either day?
The likelihood of it not raining both days day is 0.28, or 28%.
Who is the originator of probability?
An exchange if letters between two important mathematicians--Blaise Pascal or Pierre de Fermat--in the mid-17th century laid the groundwork for probability, transforming the way mathematicians and scientists regarded uncertainty and risk.
for Monday is 1 - 0.6 = 0.4 while the probability of rain for Thursday equals 1 - 0.3 = 0.7.
Because we assume that rain on Monday or rain on Thursday were independent events, the likelihood of no precipitation for both days is simply a function of the probabilities for zero rain on each day.
So the chances of it not raining on either day are:
P(no rain Monday and Thursday) = P(no rainfall Monday) x P(no rain Thursday) = 0.4 x 0.7 = 0.28
As a result, the likelihood of it not raining both days day is 0.28, or 28%.
To know more about Probability visit:
brainly.com/question/30034780
#SPJ1
is 5 1/25 a irrational or rational number?
Answer:
5.04 or 5 1/25 is a rational number
Step-by-step explanation:
Answer:
Yes. 5 1/2 is rational number
Step-by-step explanation:
Hope I helped!!
I need to know the answer pleaseeee
Answer:
4:49
Step-by-step explanation:
e(n) = ; -
(-3)"-1
What is the 3rd term in the sequence?
The third term in the sequence is e(3) = (-3)^(-1)^3.To find the third term in the sequence, we first need to understand the formula for the nth term in the sequence. The formula for the nth term of the sequence is:
e(n) = (-3)^(-1)^(n)
Here, (-3)^(-1) is the base, and n is the exponent. According to the rules of exponents, when we raise a negative number to an odd exponent, the result is negative, and when we raise a negative number to an even exponent, the result is positive. Therefore, we can simplify the formula as follows:
If n is odd, e(n) = -3^(-1) = -1/3.
If n is even, e(n) = 3^(-1) = 1/3.
Since we are looking for the third term in the sequence, we can substitute n = 3 into the formula to get:
e(3) = (-3)^(-1)^(3) = -1/3.
Therefore, the third term in the sequence is -1/3.
Learn more about odd exponent here:- brainly.com/question/29087834
#SPJ11
Review of the basic stock list for your pet shop indicates you need to reorder the following items: 25 boxes of fish food at $9 each, 12 fish bowls at $13, and 15 aquarium accessory starter kits at $15 each. What is the total cost for all the items?.
The total cost for all the items fish, fish bowl, and aquarium will be $606.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
An audit of the fundamental stock rundown for your pet shop demonstrates you want to reorder the accompanying things: 25 boxes of fish food at $9 every, 12 fish bowls at $13, and 15 aquarium extra starter packs at $15 each.
Then the total cost for all the items will be given as,
Total cost = 25 x $9 + 12 x $13 + 15 x $15
Total cost = $225 + $156 + $225
Total cost = $606
The total cost for all the items fish, fish bowl, and aquarium will be $606.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ1
Diane made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $23.20. If the beads cost $2.90 for each necklace, how much did each pendant cost?
Answer:
what is the difference in length and the shortest length
I WILL MARK BRAINLIEST IMMEDIATELY PLSS
Using a system of equations, Christine's investments in account one were $4,000 and in account two $16,000.
What is a system of equations?A system of equations refers to simultaneous equations.
Simultaneous equations are two or more equations solved concurrently.
Total investment in two accounts = $20,000
The simple interest rate for account one, x = 8%
The simple interest rate for account two, y = 10%
Total interest for a year = $1,920
Let account one = x and account two = y
Equations:x + y = 20,000 ... Equation 1
0.08x + 0.1y = 1,920 ... Equation 2
Multiply Equation 1 by 0.08
0.08x + 0.08y = 1,600 ... Equation 3
Subtract Equation 3 from Equation 2:
0.08x + 0.1y = 1,920
-
0.08x + 0.08y = 1,600
0.02y = 320
y = 16,000
= $16,000
In Equation 1, x + y = 20,000, Substitute y = 16,000:
x + 16,000 = 20,000
x = 4,000
= $4,000
Check:
From Equation 2:
0.08x + 0.1y = 1,920
0.08(4,000) + 0.1(16,000) = 1,920
320 + 1,600 = 1,920
Thus, using simultaneous equations, we can conclude that Christine invested $4,000 in the first account and $16,000 in the second account.
Learn more about simultaneous equations at https://brainly.com/question/16863577
#SPJ1
Complete Question:Last year, Christine had $20,000 to invest. She invested some of it in an account that paid 8% simple interest per year, and she invested the rest in an account that paid 10% simple interest per year. After one year, she received a total of $1920 in interest. How much did she invest in each account?
First account:
Second account:
1.does the table below represent s proportional relationship?_____ 2. if r is the constant of proportionality,what will be the equation y=rx for this relationship
Answer:
tyuiiiiiittghh gf dssddddddddd
describe la vida en el barrio que se desarrolla en la pelicula los olvidados de Luis Buñuel teniendo en cuenta sus condiciones economicas y sociales atravez de las distintas actividades desarrolladas por los vecindarios
Life in the neighborhood depicted in the film "Los Olvidados" is characterized by challenging economic and social conditions.
How do the economic and social conditions shape life in the neighborhood?The neighborhood in "Los Olvidados" is portrayed as a poverty-stricken area where the residents struggle to make ends meet. The film explores the lives of marginalized individuals most particularly young boys, who are caught in a cycle of poverty, violence, and neglect.
The economic conditions in the neighborhood are harsh, with limited opportunities for employment and a lack of access to basic necessities. As a result, the residents are often forced into criminal activities to survive leading to a high level of violence and crime within the community.
Moreover, the social conditions exacerbate the challenges faced by the neighborhood. There is a sense of abandonment and neglect from the government and wider society with little support or resources available to address the issues faced by the residents.
Full question:
Describes life in the neighborhood that takes place in the film Los Olvidados by Luis Buñuel, taking into account their economic and social conditions through the different activities carried out by the neighborhoods.
Read more about Los Olvidados
brainly.com/question/33429824
#SPJ1
Is this function linear or nonlinear? y=2x2−4 nonlinear linear
Answer:
yes cause its in a form of y=mx+b
Step-by-step explanation:
Answer:
linear
Step-by-step explanation:
I got to K-12 and this was correct
You are given the option of when you would like to drive a Ferrari for a day. You may choose any time in the next four days [ today (t=0), tomorrow (t=1), ...]. Your consumption utility for driving a Ferrari is u(c)=(10c)
2
; where c is the number of days driving a Ferrari. You have a daily discount rate of 0.5. a. Using the standard economic model of exponential discounting, when do you choose to drive the Ferrari? b. If you derive utility from only anticipation, not consumption, and your α=2 when do you drive the Ferrari? c. If you derive utility from anticipation and consumption and your α=2 when do you drive the Ferrari?
In the standard economic model of exponential discounting, you would choose to drive the Ferrari on the last day (fourth day) since it maximizes your discounted utility. However, if you derive b from anticipation alone with α=2, you would choose to drive the Ferrari on the first day. If you derive utility from both anticipation and consumption with α=2, you would still choose to drive the Ferrari on the last day.
In the standard economic model of exponential discounting, the discounted utility of driving the Ferrari for c days can be calculated as \(u(c) / (1 + r)^t, where u(c)\) is the utility function, r is the daily discount rate, and t is the time period.
a. With a daily discount rate of 0.5, you would choose to drive the Ferrari on the last day (day 4) since it maximizes your discounted utility. The utility function \(u(c) = (10c)^2\) does not affect the timing of your choice.
b. If you derive utility from anticipation alone, not consumption, with α=2, the timing of your choice changes. In this case, you only consider the utility derived from anticipating driving the Ferrari. The utility function becomes \(u(c) = α^t\), where α=2. As α increases with time, you would choose to drive the Ferrari on the first day (day 0) to maximize your utility from anticipation.
c. If you derive utility from both anticipation and consumption with α=2, the timing of your choice reverts to the standard model. The utility function remains \(u(c) = (10c)^2\), and with a value of α=2, the highest discounted utility is still achieved by driving the Ferrari on the last day (day 4).
Therefore, depending on the consideration of anticipation alone or anticipation and consumption together, your choice of when to drive the Ferrari may differ.
Learn more about exponential discounting here:
https://brainly.com/question/29631075
#SPJ11
Help!! I will give brainlest to the right one!
What is the slope in the graph?*
undefined
m=0
m=-1
m=1
Answer:
UNDEFINED
Step-by-step explanation:
I would really appreciate it if someone helped me.
Answer:
y = x + 5
Step-by-step explanation:
Using a coordinate plane, you can simply plot the points! I included the one that I used if you need it.
Use RISE/RUN to find the slope, and wherever the line hits the y-axis is the y-intercept!
I hope this helps!! Have a nice day c;
calculate the taylor polynomials 2()t2(x) and 3()t3(x) centered at =x=a for ()=4sin(), =2.
The Taylor polynomial 2()t2(x) centered at x=a for ()=4sin(), =2 is given by:
2()t2(x) = 4sin(a) + 8cos(a)(x-a) - 8sin(a)(x-a)^2
The Taylor polynomial 3()t3(x) centered at x=a for ()=4sin(), =2 is given by:
3()t3(x) = 4sin(a) + 8cos(a)(x-a) - 8sin(a)(x-a)^2 - 32/3cos(a)(x-a)^3
in these equations, sin(a) and cos(a) are the values of sine and cosine at the point a=2.
The Taylor polynomials are approximations of the function ()=4sin() near the point a=2. The polynomial 2()t2(x) is a second-degree polynomial that approximates the function to within an error of O((x-a)^3), while 3()t3(x) is a third-degree polynomial that approximates the function to within an error of O((x-a)^4).
The coefficients of these polynomials are derived from the derivatives of the function at the point a, evaluated using the formula for Taylor coefficients. These polynomials can be used to estimate the value of the function at points near a=2.
To learn more about taylor polynomials click here:
brainly.com/question/31968156
#SPJ11
Life expectancy for all the different countries in the world ranges from a low of only 52.2 years (in sierra leone) to a high of 84.7 years (in hong kong). life expectancies are clustered at the high end, with about half of all the countries having a life expectancy between about 74 and the maximum of 84.7. a few countries, such as sierra leone, have a very low life expectancy.
a. what is the shape of the distribution of life expectancies for all countries?
a) symmetric.b) skewed to the right.c) skewed to the left.d) none of these.b. from the information given, estimate the median of the life expectancies.c. will the mean be larger or smaller than the median?
From the given distribution, we have that:
a) The distribution is skewed to the left.
b) The median is of 74.
c) The mean will be smaller than the median.
Figuring the skewness with the mean and the median:Mean greater than median: Positively(right) skewedMean less than the median: Negatively(left) skewedSince life expectancies are clustered at the high end, the outliers are small life expectancies, meaning that the mean will be smaller than the median and the distribution is skewed to the left.
The median of a data-set is the 50th percentile, the value that separates the bottom 50% of the data-set from the upper 50%.
In this problem, we have that about half of all the countries having a life expectancy between about 74 and the maximum of 84.7, meaning that 74 is the median.
More can be learned about the skewness of a distribution at https://brainly.com/question/28315480
#SPJ1